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Finding the Fourth Proportional to 86,621.65, 119,537.86 and 46,877.65

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Solution

The fourth proportional to 86,621.65, 119,537.86 and 46,877.65 is: 64,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,621.65 : 119,537.86 = 46,877.65 : x
  2. Step 2: Convert to fraction form
    86,621.65/119,537.86 = 46,877.65/x
  3. Step 3: Cross multiply
    86,621.65x = 119,537.86 × 46,877.65
  4. Step 4: Simplify right side
    86,621.65x = 5,603,653,962.83
  5. Step 5: Solve for x
    x = 5,603,653,962.83/86,621.65
  6. Step 6: Final answer
    x = 64,691.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.